/usr/include/srecord/input/filter/message/gcrypt.h is in libsrecord-dev 1.58-1.1.
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// srecord - Manipulate EPROM load files
// Copyright (C) 2009-2011 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#ifndef SRECORD_INPUT_FILTER_MESSAGE_GCRYPT_H
#define SRECORD_INPUT_FILTER_MESSAGE_GCRYPT_H
#include <srecord/input/filter/message.h>
namespace srecord
{
/**
* The srecord::input_filter_message_gcrypt class is used to represent a
* filter that runs the data through one of the hashing algorithms in
* the gcrypt library.
*
* http://freshmeat.net/projects/libgcrypt/
* http://directory.fsf.org/project/libgcrypt/
*/
class input_filter_message_gcrypt:
public input_filter_message
{
public:
/**
* The destructor.
*/
virtual ~input_filter_message_gcrypt();
private:
/**
* The constructor. It is private on purpose, use one of the
* create_* class method instead.
*
* @param deeper
* The source of data to be filtered.
* @param algo
* The algorithm number (private to class).
* @param hmac
* Turn the hash into a HMAC.
* @param address
* Where to place the hash in memory.
* @param hmac
* Add a message authentication code
*/
input_filter_message_gcrypt(const input::pointer &deeper,
unsigned long address, int algo, bool hmac);
private:
/**
* The create class method is used to create a new dynamically
* allocated instance of this class.
*
* @param deeper
* The source of data to be filtered.
* @param algo
* The algorithm to be used. This is for debug.
* The actual algorithm numbers are private to the class.
* Choose a random number, it will likely segfault. Seriously.
* @param address
* Where to place the hash in memory.
* @param hmac
* Add a message authentication code
*/
static pointer create(const input::pointer &deeper, unsigned long address,
int algo, bool hmac = false);
/**
* The algorithm_from_name class method is used to translate an
* algorithm name into an algorithm number.
*
* @param name
* The name of the algorithm.
* @return
* an algorithm number. It does not return if the name is
* unknown, it exits with a fatal error message instead.
*/
static int algorithm_from_name(const char *name);
public:
/**
* The create class method is used to create a new dynamically
* allocated instance of this class.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
* @param algo
* The algorithm to be used. This is for debug.
* The actual algorithm numbers are private to the class.
* @param hmac
* Turn the hash into a HMAC.
*/
static pointer create(const input::pointer &deeper, unsigned long address,
const char *algo, bool hmac = false);
/**
* The create_md5 class method is used to create a new dynamically
* allocated instance of this class, that calculates MD5 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_md5(const input::pointer &deeper,
unsigned long address);
/**
* The create_sha1 class method is used to create a new dynamically
* allocated instance of this class, that calculates SHA1 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_sha1(const input::pointer &deeper,
unsigned long address);
/**
* The create_rmd160 class method is used to create a new dynamically
* allocated instance of this class, that calculates RMD160 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_rmd160(const input::pointer &deeper,
unsigned long address);
/**
* The create_md2 class method is used to create a new dynamically
* allocated instance of this class, that calculates MD2 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_md2(const input::pointer &deeper,
unsigned long address);
/**
* The create_tiger class method is used to create a new dynamically
* allocated instance of this class, that calculates TIGER/192 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_tiger(const input::pointer &deeper,
unsigned long address);
/**
* The create_haval class method is used to create a new dynamically
* allocated instance of this class, that calculates HAVAL/160 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_haval(const input::pointer &deeper,
unsigned long address);
/**
* The create_sha256 class method is used to create a new dynamically
* allocated instance of this class, that calculates SHA-256 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_sha256(const input::pointer &deeper,
unsigned long address);
/**
* The create_sha384 class method is used to create a new dynamically
* allocated instance of this class, that calculates SHA-384 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_sha384(const input::pointer &deeper,
unsigned long address);
/**
* The create_sha512 class method is used to create a new dynamically
* allocated instance of this class, that calculates SHA-512 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_sha512(const input::pointer &deeper,
unsigned long address);
/**
* The create_sha224 class method is used to create a new dynamically
* allocated instance of this class, that calculates SHA-224 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_sha224(const input::pointer &deeper,
unsigned long address);
/**
* The create_md4 class method is used to create a new dynamically
* allocated instance of this class, that calculates MD4 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_md4(const input::pointer &deeper,
unsigned long address);
/**
* The create_crc32 class method is used to create a new dynamically
* allocated instance of this class, that calculates CRC-32 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_crc32(const input::pointer &deeper,
unsigned long address);
/**
* The create_crc32_rfc1510 class method is used to create a new
* dynamically allocated instance of this class, that calculates
* CRC32 RFC1510 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_crc32_rfc1510(const input::pointer &deeper,
unsigned long address);
/**
* The create_crc24_rfc2440 class method is used to create a new
* dynamically allocated instance of this class, that calculates
* CRC24 RFC2440 hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_crc24_rfc2440(const input::pointer &deeper,
unsigned long address);
/**
* The create_whirlpool class method is used to create a new
* dynamically allocated instance of this class, that calculates
* WHIRLPOOL hashes.
*
* @param deeper
* The source of data to be filtered.
* @param address
* Where to place the hash in memory.
*/
static pointer create_whirlpool(const input::pointer &deeper,
unsigned long address);
protected:
// See base class for documentation.
void process(const memory &input, record &output);
// See base class for documentation.
const char *get_algorithm_name() const;
private:
/**
* The algo instance variable is used to remember the algorithm
* number.
*/
int algo;
/**
* The hmac instance variable is used to remember whether or not to
* turn the hash into a HMAC.
*/
bool hmac;
/**
* The address instance variable is used to remember where to place
* the hash in memory.
*/
unsigned long address;
/**
* The default constructor. Do not use.
*/
input_filter_message_gcrypt();
/**
* The copy constructor. Do not use.
*/
input_filter_message_gcrypt(const input_filter_message_gcrypt &);
/**
* The assignment operator. Do not use.
*/
input_filter_message_gcrypt &operator=(const input_filter_message_gcrypt &);
};
};
// vim: set ts=8 sw=4 et :
#endif // SRECORD_INPUT_FILTER_MESSAGE_GCRYPT_H
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